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Published on: February 16, 2016
Analysis of genetic polymorphisms at the interleukin-10 loci in aggressive and chronic periodontitis
J R Gonzales1, J Michel, A Diete
1Department of Periodontology and Department of Statistics, University of Giessen, Germany. jose.gonzales@dentist.med.uni-giessen.de
Background/Aims:
Different cytokine genotypes have been described in periodontal disease. The aim of the present study was to investigate the genetic association of two previously described interleukin-10 (IL-10) polymorphisms in patients with aggressive (AP) and chronic periodontitis (CP) and to investigate possible associations with clinical manifestations.
Methods:
Based on clinical parameters and radiographs, 23 patients with CP and 18 patients with AP were included in the study. Additionally, 21 age-matched healthy subjects served as a control group. Genomic DNA was isolated from whole blood samples and the IL-10 promoter sequences from positions - 597 to - 824 were amplified by polymerase chain reaction (PCR). Polymorphisms were detected by restriction-enzyme cleavage. The A and C alleles at the - 597 position were associated with the T and C alleles at the - 824 position, respectively. Fisher's exact test was used for the statistical analysis.
Results:
No significant differences were observed in the allele frequencies between controls and AP patients (p = 0.70) or CP patients (p = 0.43), although the previously reported association between allele A at position - 597 and allele T at position - 824 was observed in our population.
Conclusion:
We conclude that the investigated polymorphisms are not associated with periodontal disease.
